Next-Generation Desalination & Deionization Technology for Sustainable Water Treatment
Advanced Water Purification Technology
CapDI (Membrane Capacitive Deionization) is an advanced water purification technology that works like a flow-through capacitor. Feedwater flows through stacks of capacitor plates where ions are adsorbed by carbon electrodes covered with cation and anion exchange membranes. These membranes allow only ions to pass, preventing unwanted migration and ensuring highly efficient deionization.
Its behaves like a flow-through capacitor where the feedwater travels through stacks of capacitor plates. Ions are adsorbed by carbon electrodes covered with cation and anion ion exchange membranes. The membranes are employed to keep positive and negative ions from migrating to their respective opposite poles during the regeneration sequence. These membranes are impermeable to water, allowing only ions to pass. Alternately, RO water desalination technology employs semi-permeable spiral wound membranes, operating under high pressure, to remove ions, molecules, and larger particles from water.
Unlike conventional Reverse Osmosis (RO), which requires high pressure and semi-permeable membranes, CapDI operates at low pressure, offering higher water recovery, reduced energy consumption, and chemical-free operation.
At Innow India, we offer domestic and industrial CapDI solutions, with flow rates ranging from 15 LPH to over 150 LPH, making it suitable for a wide range of applications.

Key Features
- Low energy consumption compared to RO systems
- High water recovery (>70%) with minimal wastage
- Tuneable TDS control for customized water quality
- Compact, modular, and scalable design
- Reduced fouling and scaling issues
- Environmentally friendly and chemical-free operation
Benefits
- Cost Savings – Lower operating and maintenance costs
- High Efficiency – Consistent TDS reduction and water quality improvement
- Eco-Friendly – Minimal chemical usage and reduced wastewater discharge
- Space-Saving – Compact system design for flexible installation
- Sustainable – Energy-efficient solution for long-term water management
Applications
Industrial process water treatment
CapDI-based Water ATM Systems with tuneable TDS and >70% water recovery
Boiler feed water preparation
Cooling tower make-up water
Drinking water treatment
Desalination in water-scarce regions
Commercial and institutional water purification
Filtration Process in CapDI Water ATM
Pre-Filtration – Removes sand, dirt, odor, bad taste, and heavy metals.
CapDI TDS Removal – Adjustable TDS reduction with high recovery rate.
Hydro-dis System – Eliminates bacteria/pathogens and adds Free Residual Chlorine (FRC) to ensure long-lasting disinfection.
Water Cooling – Integrated water cooler for chilled purified water.
Dispensing Unit – Vending option for 330 mL, 1 L, and 5 L bottles through coin/card-based operation.
Why Choose Capacitive Deionization?
CapDI represents the future of sustainable desalination and deionization. With its low energy demand, high recovery rate, and chemical-free operation, it outperforms traditional RO and ion-exchange systems. Whether for domestic water needs or industrial-scale purification, CapDI is a reliable, eco-friendly, and cost-effective solution. The Capacitive Deionization system is a game-changer in water treatment, offering a sustainable alternative to RO and ion-exchange methods, with its low energy demand, high water recovery, and minimal chemical usage.